40146143 has 2 divisors, whose sum is σ = 40146144. Its totient is φ = 40146142.

The previous prime is 40146089. The next prime is 40146149. The reversal of 40146143 is 34164104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40146143 - 2¹⁴ = 40129759 is a prime.

It is a super-2 number, since 2×40146143² = 3223425595552898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40146149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20073071 + 20073072.

It is an arithmetic number, because the mean of its divisors is an integer number (20073072).

Almost surely, 2^40146143 is an apocalyptic number.

40146143 is a deficient number, since it is larger than the sum of its proper divisors (1).

40146143 is an equidigital number, since it uses as much as digits as its factorization.

40146143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40146143 is about 6336.0984051702. The cubic root of 40146143 is about 342.4111848137.

The spelling of 40146143 in words is "forty million, one hundred forty-six thousand, one hundred forty-three".